Once you start to set up more and more home automation devices with your iOS devices, you might find that the Home app can start to feel cluttered.
While you can organize by Rooms, set Scenes, and group by Zones, sometimes you just want to combine a few lights into one button so you can turn them all on at once. In order to group your HomeKit devices together and treat them like one accessory, follow these steps:
Open the Home app.
3D touch an individual device in the Home app to open its action view.
Here you'll see the volume slider or on/off switch - down at the bottom, hit Settings...Read more ...